38647948 has 12 divisors (see below), whose sum is σ = 69815872. Its totient is φ = 18700560.

The previous prime is 38647937. The next prime is 38647949. The reversal of 38647948 is 84974683.

It is a super-2 number, since 2×38647948² = 2987327769221408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38647949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155715 + ... + 155962.

Almost surely, 2^38647948 is an apocalyptic number.

It is an amenable number.

38647948 is a deficient number, since it is larger than the sum of its proper divisors (31167924).

38647948 is a wasteful number, since it uses less digits than its factorization.

38647948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311712 (or 311710 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 38647948 is about 6216.7473810667. The cubic root of 38647948 is about 338.0976457725.

The spelling of 38647948 in words is "thirty-eight million, six hundred forty-seven thousand, nine hundred forty-eight".